24be4a38d0
* WebGPU: Add texture format (shaderc bin version 10) * WebGPU: Simplify storage images + Fix format decorations * Shaderc: Cleanup Texture name assumption in textures
1294 lines
35 KiB
C++
1294 lines
35 KiB
C++
/*
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* Copyright 2011-2021 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
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*/
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#include "shaderc.h"
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BX_PRAGMA_DIAGNOSTIC_PUSH()
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BX_PRAGMA_DIAGNOSTIC_IGNORED_MSVC(4100) // error C4100: 'inclusionDepth' : unreferenced formal parameter
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BX_PRAGMA_DIAGNOSTIC_IGNORED_MSVC(4265) // error C4265: 'spv::spirvbin_t': class has virtual functions, but destructor is not virtual
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BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wattributes") // warning: attribute ignored
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BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wdeprecated-declarations") // warning: ‘MSLVertexAttr’ is deprecated
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BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wtype-limits") // warning: comparison of unsigned expression in ‘< 0’ is always false
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BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wshadow") // warning: declaration of 'userData' shadows a member of 'glslang::TShader::Includer::IncludeResult'
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#define ENABLE_OPT 1
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#include <ShaderLang.h>
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#include <ResourceLimits.h>
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#include <SPIRV/SPVRemapper.h>
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#include <SPIRV/GlslangToSpv.h>
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#include <webgpu/webgpu_cpp.h>
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#define SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
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#include <spirv_msl.hpp>
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#include <spirv_reflect.hpp>
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#include <spirv-tools/optimizer.hpp>
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BX_PRAGMA_DIAGNOSTIC_POP()
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namespace bgfx
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{
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static bx::DefaultAllocator s_allocator;
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bx::AllocatorI* g_allocator = &s_allocator;
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struct TinyStlAllocator
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{
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static void* static_allocate(size_t _bytes);
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static void static_deallocate(void* _ptr, size_t /*_bytes*/);
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};
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void* TinyStlAllocator::static_allocate(size_t _bytes)
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{
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return BX_ALLOC(g_allocator, _bytes);
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}
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void TinyStlAllocator::static_deallocate(void* _ptr, size_t /*_bytes*/)
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{
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if (NULL != _ptr)
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{
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BX_FREE(g_allocator, _ptr);
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}
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}
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} // namespace bgfx
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#define TINYSTL_ALLOCATOR bgfx::TinyStlAllocator
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#include <tinystl/allocator.h>
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#include <tinystl/string.h>
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#include <tinystl/unordered_map.h>
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#include <tinystl/vector.h>
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namespace stl = tinystl;
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#include "../../src/shader.h"
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#include "../../src/shader_spirv.h"
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#include "../../3rdparty/khronos/vulkan-local/vulkan.h"
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namespace bgfx { namespace spirv
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{
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const TBuiltInResource resourceLimits =
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{
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32, // MaxLights
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6, // MaxClipPlanes
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32, // MaxTextureUnits
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32, // MaxTextureCoords
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64, // MaxVertexAttribs
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4096, // MaxVertexUniformComponents
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64, // MaxVaryingFloats
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32, // MaxVertexTextureImageUnits
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80, // MaxCombinedTextureImageUnits
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32, // MaxTextureImageUnits
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4096, // MaxFragmentUniformComponents
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32, // MaxDrawBuffers
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128, // MaxVertexUniformVectors
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8, // MaxVaryingVectors
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16, // MaxFragmentUniformVectors
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16, // MaxVertexOutputVectors
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15, // MaxFragmentInputVectors
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-8, // MinProgramTexelOffset
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7, // MaxProgramTexelOffset
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8, // MaxClipDistances
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65535, // MaxComputeWorkGroupCountX
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65535, // MaxComputeWorkGroupCountY
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65535, // MaxComputeWorkGroupCountZ
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1024, // MaxComputeWorkGroupSizeX
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1024, // MaxComputeWorkGroupSizeY
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64, // MaxComputeWorkGroupSizeZ
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1024, // MaxComputeUniformComponents
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16, // MaxComputeTextureImageUnits
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8, // MaxComputeImageUniforms
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8, // MaxComputeAtomicCounters
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1, // MaxComputeAtomicCounterBuffers
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60, // MaxVaryingComponents
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64, // MaxVertexOutputComponents
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64, // MaxGeometryInputComponents
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128, // MaxGeometryOutputComponents
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128, // MaxFragmentInputComponents
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8, // MaxImageUnits
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8, // MaxCombinedImageUnitsAndFragmentOutputs
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8, // MaxCombinedShaderOutputResources
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0, // MaxImageSamples
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0, // MaxVertexImageUniforms
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0, // MaxTessControlImageUniforms
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0, // MaxTessEvaluationImageUniforms
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0, // MaxGeometryImageUniforms
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8, // MaxFragmentImageUniforms
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8, // MaxCombinedImageUniforms
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16, // MaxGeometryTextureImageUnits
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256, // MaxGeometryOutputVertices
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1024, // MaxGeometryTotalOutputComponents
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1024, // MaxGeometryUniformComponents
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64, // MaxGeometryVaryingComponents
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128, // MaxTessControlInputComponents
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128, // MaxTessControlOutputComponents
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16, // MaxTessControlTextureImageUnits
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1024, // MaxTessControlUniformComponents
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4096, // MaxTessControlTotalOutputComponents
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128, // MaxTessEvaluationInputComponents
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128, // MaxTessEvaluationOutputComponents
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16, // MaxTessEvaluationTextureImageUnits
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1024, // MaxTessEvaluationUniformComponents
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120, // MaxTessPatchComponents
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32, // MaxPatchVertices
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64, // MaxTessGenLevel
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16, // MaxViewports
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0, // MaxVertexAtomicCounters
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0, // MaxTessControlAtomicCounters
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0, // MaxTessEvaluationAtomicCounters
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0, // MaxGeometryAtomicCounters
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8, // MaxFragmentAtomicCounters
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8, // MaxCombinedAtomicCounters
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1, // MaxAtomicCounterBindings
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0, // MaxVertexAtomicCounterBuffers
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0, // MaxTessControlAtomicCounterBuffers
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0, // MaxTessEvaluationAtomicCounterBuffers
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0, // MaxGeometryAtomicCounterBuffers
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1, // MaxFragmentAtomicCounterBuffers
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1, // MaxCombinedAtomicCounterBuffers
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16384, // MaxAtomicCounterBufferSize
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4, // MaxTransformFeedbackBuffers
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64, // MaxTransformFeedbackInterleavedComponents
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8, // MaxCullDistances
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8, // MaxCombinedClipAndCullDistances
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4, // MaxSamples
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0, // maxMeshOutputVerticesNV
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0, // maxMeshOutputPrimitivesNV
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0, // maxMeshWorkGroupSizeX_NV
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0, // maxMeshWorkGroupSizeY_NV
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0, // maxMeshWorkGroupSizeZ_NV
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0, // maxTaskWorkGroupSizeX_NV
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0, // maxTaskWorkGroupSizeY_NV
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0, // maxTaskWorkGroupSizeZ_NV
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0, // maxMeshViewCountNV
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0, // maxDualSourceDrawBuffersEXT
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{ // limits
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true, // nonInductiveForLoops
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true, // whileLoops
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true, // doWhileLoops
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true, // generalUniformIndexing
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true, // generalAttributeMatrixVectorIndexing
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true, // generalVaryingIndexing
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true, // generalSamplerIndexing
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true, // generalVariableIndexing
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true, // generalConstantMatrixVectorIndexing
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},
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};
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bool printAsm(uint32_t _offset, const SpvInstruction& _instruction, void* _userData)
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{
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BX_UNUSED(_userData);
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char temp[512];
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toString(temp, sizeof(temp), _instruction);
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BX_TRACE("%5d: %s", _offset, temp);
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return true;
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}
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bgfx::TextureComponentType::Enum SpirvCrossBaseTypeToFormatType(spirv_cross::SPIRType::BaseType spirvBaseType, bool depth)
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{
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if (depth)
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return bgfx::TextureComponentType::Depth;
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switch (spirvBaseType)
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{
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case spirv_cross::SPIRType::Float:
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return bgfx::TextureComponentType::Float;
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case spirv_cross::SPIRType::Int:
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return bgfx::TextureComponentType::Int;
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case spirv_cross::SPIRType::UInt:
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return bgfx::TextureComponentType::Uint;
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default:
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return bgfx::TextureComponentType::Float;
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}
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}
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bgfx::TextureDimension::Enum SpirvDimToTextureViewDimension(spv::Dim _dim, bool _arrayed)
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{
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switch (_dim)
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{
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case spv::Dim::Dim1D:
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return bgfx::TextureDimension::Dimension1D;
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case spv::Dim::Dim2D:
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return _arrayed
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? bgfx::TextureDimension::Dimension2DArray
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: bgfx::TextureDimension::Dimension2D
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;
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case spv::Dim::Dim3D:
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return bgfx::TextureDimension::Dimension3D;
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case spv::Dim::DimCube:
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return _arrayed
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? bgfx::TextureDimension::DimensionCubeArray
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: bgfx::TextureDimension::DimensionCube
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;
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default:
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BX_ASSERT(false, "Unknown texture dimension %d", _dim);
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return bgfx::TextureDimension::Dimension2D;
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}
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}
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static bgfx::TextureFormat::Enum s_textureFormats[] =
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{
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bgfx::TextureFormat::Unknown, // spv::ImageFormatUnknown = 0
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bgfx::TextureFormat::RGBA32F, // spv::ImageFormatRgba32f = 1
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bgfx::TextureFormat::RGBA16F, // spv::ImageFormatRgba16f = 2
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bgfx::TextureFormat::R32F, // spv::ImageFormatR32f = 3
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bgfx::TextureFormat::RGBA8, // spv::ImageFormatRgba8 = 4
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bgfx::TextureFormat::RGBA8S, // spv::ImageFormatRgba8Snorm = 5
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bgfx::TextureFormat::RG32F, // spv::ImageFormatRg32f = 6
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bgfx::TextureFormat::RG16F, // spv::ImageFormatRg16f = 7
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bgfx::TextureFormat::RG11B10F, // spv::ImageFormatR11fG11fB10f = 8
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bgfx::TextureFormat::R16F, // spv::ImageFormatR16f = 9
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bgfx::TextureFormat::RGBA16, // spv::ImageFormatRgba16 = 10
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bgfx::TextureFormat::RGB10A2, // spv::ImageFormatRgb10A2 = 11
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bgfx::TextureFormat::RG16, // spv::ImageFormatRg16 = 12
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bgfx::TextureFormat::RG8, // spv::ImageFormatRg8 = 13
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bgfx::TextureFormat::R16, // spv::ImageFormatR16 = 14
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bgfx::TextureFormat::R8, // spv::ImageFormatR8 = 15
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bgfx::TextureFormat::RGBA16S, // spv::ImageFormatRgba16Snorm = 16
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bgfx::TextureFormat::RG16S, // spv::ImageFormatRg16Snorm = 17
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bgfx::TextureFormat::RG8S, // spv::ImageFormatRg8Snorm = 18
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bgfx::TextureFormat::R16S, // spv::ImageFormatR16Snorm = 19
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bgfx::TextureFormat::R8S, // spv::ImageFormatR8Snorm = 20
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bgfx::TextureFormat::RGBA32I, // spv::ImageFormatRgba32i = 21
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bgfx::TextureFormat::RGBA16I, // spv::ImageFormatRgba16i = 22
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bgfx::TextureFormat::RGBA8I, // spv::ImageFormatRgba8i = 23
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bgfx::TextureFormat::R32I, // spv::ImageFormatR32i = 24
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bgfx::TextureFormat::RG32I, // spv::ImageFormatRg32i = 25
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bgfx::TextureFormat::RG16I, // spv::ImageFormatRg16i = 26
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bgfx::TextureFormat::RG8I, // spv::ImageFormatRg8i = 27
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bgfx::TextureFormat::R16I, // spv::ImageFormatR16i = 28
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bgfx::TextureFormat::R8I, // spv::ImageFormatR8i = 29
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bgfx::TextureFormat::RGBA32U, // spv::ImageFormatRgba32ui = 30
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bgfx::TextureFormat::RGBA16U, // spv::ImageFormatRgba16ui = 31
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bgfx::TextureFormat::RGBA8U, // spv::ImageFormatRgba8ui = 32
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bgfx::TextureFormat::R32U, // spv::ImageFormatR32ui = 33
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bgfx::TextureFormat::Unknown, // spv::ImageFormatRgb10a2ui = 34
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bgfx::TextureFormat::RG32U, // spv::ImageFormatRg32ui = 35
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bgfx::TextureFormat::RG16U, // spv::ImageFormatRg16ui = 36
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bgfx::TextureFormat::RG8U, // spv::ImageFormatRg8ui = 37
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bgfx::TextureFormat::R16U, // spv::ImageFormatR16ui = 38
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bgfx::TextureFormat::R8U, // spv::ImageFormatR8ui = 39
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bgfx::TextureFormat::Unknown, // spv::ImageFormatR64ui = 40
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bgfx::TextureFormat::Unknown, // spv::ImageFormatR64i = 41
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};
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struct SpvReflection
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{
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struct TypeId
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{
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enum Enum
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{
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Void,
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Bool,
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Int32,
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Int64,
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Uint32,
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Uint64,
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Float,
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Double,
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Vector,
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Matrix,
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Count
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};
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TypeId()
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: baseType(Enum::Count)
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, type(Enum::Count)
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, numComponents(0)
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{
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}
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Enum baseType;
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Enum type;
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uint32_t numComponents;
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stl::string toString()
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{
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stl::string result;
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switch (type)
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{
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case Float:
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result.append("float");
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break;
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case Vector:
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bx::stringPrintf(result, "vec%d"
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, numComponents
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);
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break;
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case Matrix:
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bx::stringPrintf(result, "mat%d"
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, numComponents
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);
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default:
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break;
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}
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return result;
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}
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};
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struct Id
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{
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struct Variable
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{
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Variable()
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: decoration(SpvDecoration::Count)
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, builtin(SpvBuiltin::Count)
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, storageClass(SpvStorageClass::Count)
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, location(UINT32_MAX)
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, offset(UINT32_MAX)
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, type(UINT32_MAX)
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{
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}
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stl::string name;
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SpvDecoration::Enum decoration;
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SpvBuiltin::Enum builtin;
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SpvStorageClass::Enum storageClass;
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uint32_t location;
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uint32_t offset;
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uint32_t type;
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};
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typedef stl::vector<Variable> MemberArray;
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Variable var;
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MemberArray members;
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};
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typedef stl::unordered_map<uint32_t, TypeId> TypeIdMap;
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typedef stl::unordered_map<uint32_t, Id> IdMap;
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TypeIdMap typeIdMap;
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IdMap idMap;
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stl::string getTypeName(uint32_t _typeId)
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{
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return getTypeId(_typeId).toString();
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}
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Id& getId(uint32_t _id)
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{
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IdMap::iterator it = idMap.find(_id);
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if (it == idMap.end() )
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{
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Id id;
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stl::pair<IdMap::iterator, bool> result = idMap.insert(stl::make_pair(_id, id) );
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it = result.first;
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}
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return it->second;
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}
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Id::Variable& get(uint32_t _id, uint32_t _idx)
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{
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Id& id = getId(_id);
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id.members.resize(bx::uint32_max(_idx+1, uint32_t(id.members.size() ) ) );
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return id.members[_idx];
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}
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TypeId& getTypeId(uint32_t _id)
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{
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TypeIdMap::iterator it = typeIdMap.find(_id);
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if (it == typeIdMap.end() )
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{
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TypeId id;
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stl::pair<TypeIdMap::iterator, bool> result = typeIdMap.insert(stl::make_pair(_id, id) );
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it = result.first;
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}
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return it->second;
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}
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void update(uint32_t _id, const stl::string& _name)
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{
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getId(_id).var.name = _name;
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}
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BX_NO_INLINE void update(Id::Variable& _variable, SpvDecoration::Enum _decoration, uint32_t _literal)
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{
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_variable.decoration = _decoration;
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switch (_decoration)
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{
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case SpvDecoration::Location:
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_variable.location = _literal;
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break;
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case SpvDecoration::Offset:
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_variable.offset = _literal;
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break;
|
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|
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case SpvDecoration::BuiltIn:
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_variable.builtin = SpvBuiltin::Enum(_literal);
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break;
|
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|
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default:
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break;
|
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}
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}
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BX_NO_INLINE void update(Id::Variable& _variable, uint32_t _type, SpvStorageClass::Enum _storageClass)
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{
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_variable.type = _type;
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_variable.storageClass = _storageClass;
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}
|
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|
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void update(uint32_t _id, SpvDecoration::Enum _decoration, uint32_t _literal)
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{
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update(getId(_id).var, _decoration, _literal);
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}
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void update(uint32_t _id, uint32_t _type, SpvStorageClass::Enum _storageClass)
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{
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update(getId(_id).var, _type, _storageClass);
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}
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void update(uint32_t _id, uint32_t _idx, const stl::string& _name)
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{
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Id::Variable& var = get(_id, _idx);
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var.name = _name;
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}
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BX_NO_INLINE void update(uint32_t _id, uint32_t _idx, SpvDecoration::Enum _decoration, uint32_t _literal)
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{
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update(get(_id, _idx), _decoration, _literal);
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}
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void update(uint32_t _id, TypeId::Enum _type)
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{
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TypeId& type = getTypeId(_id);
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type.type = _type;
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}
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void update(uint32_t _id, TypeId::Enum _type, uint32_t _baseTypeId, uint32_t _numComonents)
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{
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TypeId& type = getTypeId(_id);
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type.type = _type;
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type.baseType = getTypeId(_baseTypeId).type;
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type.numComponents = _numComonents;
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}
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};
|
||
|
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bool spvParse(uint32_t _offset, const SpvInstruction& _instruction, void* _userData)
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||
{
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BX_UNUSED(_offset);
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||
SpvReflection* spv = (SpvReflection*)_userData;
|
||
|
||
switch (_instruction.opcode)
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||
{
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||
case SpvOpcode::Name:
|
||
spv->update(_instruction.result
|
||
, _instruction.operand[0].literalString
|
||
);
|
||
break;
|
||
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||
case SpvOpcode::Decorate:
|
||
spv->update(_instruction.operand[0].data
|
||
, SpvDecoration::Enum(_instruction.operand[1].data)
|
||
, _instruction.operand[2].data
|
||
);
|
||
break;
|
||
|
||
case SpvOpcode::MemberName:
|
||
spv->update(_instruction.result
|
||
, _instruction.operand[0].data
|
||
, _instruction.operand[1].literalString
|
||
);
|
||
break;
|
||
|
||
case SpvOpcode::MemberDecorate:
|
||
spv->update(_instruction.operand[0].data
|
||
, _instruction.operand[1].data
|
||
, SpvDecoration::Enum(_instruction.operand[2].data)
|
||
, _instruction.operand[3].data
|
||
);
|
||
break;
|
||
|
||
case SpvOpcode::Variable:
|
||
spv->update(_instruction.result
|
||
, _instruction.type
|
||
, SpvStorageClass::Enum(_instruction.operand[0].data)
|
||
);
|
||
break;
|
||
|
||
case SpvOpcode::TypeVoid:
|
||
spv->update(_instruction.result, SpvReflection::TypeId::Void);
|
||
break;
|
||
|
||
case SpvOpcode::TypeBool:
|
||
spv->update(_instruction.result, SpvReflection::TypeId::Bool);
|
||
break;
|
||
|
||
case SpvOpcode::TypeInt:
|
||
spv->update(_instruction.result
|
||
, 32 == _instruction.operand[0].data
|
||
? 0 == _instruction.operand[1].data
|
||
? SpvReflection::TypeId::Uint32
|
||
: SpvReflection::TypeId::Int32
|
||
: 0 == _instruction.operand[1].data
|
||
? SpvReflection::TypeId::Uint64
|
||
: SpvReflection::TypeId::Int64
|
||
);
|
||
break;
|
||
|
||
case SpvOpcode::TypeFloat:
|
||
spv->update(_instruction.result
|
||
, 32 == _instruction.operand[0].data
|
||
? SpvReflection::TypeId::Float
|
||
: SpvReflection::TypeId::Double
|
||
);
|
||
break;
|
||
|
||
case SpvOpcode::TypeVector:
|
||
spv->update(_instruction.result
|
||
, SpvReflection::TypeId::Vector
|
||
, _instruction.operand[0].data
|
||
, _instruction.operand[1].data
|
||
);
|
||
break;
|
||
|
||
case SpvOpcode::TypeMatrix:
|
||
spv->update(_instruction.result
|
||
, SpvReflection::TypeId::Matrix
|
||
, _instruction.operand[0].data
|
||
, _instruction.operand[1].data
|
||
);
|
||
break;
|
||
|
||
case SpvOpcode::TypeImage:
|
||
case SpvOpcode::TypeSampler:
|
||
case SpvOpcode::TypeSampledImage:
|
||
break;
|
||
|
||
case SpvOpcode::TypeStruct:
|
||
for (uint32_t ii = 0, num = _instruction.numOperands; ii < num; ++ii)
|
||
{
|
||
SpvReflection::Id::Variable& var = spv->get(_instruction.result, ii);
|
||
var.type = _instruction.operand[ii].data;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
#define DBG(...) // bx::debugPrintf(__VA_ARGS__)
|
||
|
||
void disassemble(bx::WriterI* _writer, bx::ReaderSeekerI* _reader, bx::Error* _err)
|
||
{
|
||
BX_UNUSED(_writer);
|
||
|
||
uint32_t magic;
|
||
bx::peek(_reader, magic);
|
||
|
||
SpvReflection spvx;
|
||
|
||
if (magic == SPV_CHUNK_HEADER)
|
||
{
|
||
SpirV spirv;
|
||
read(_reader, spirv, _err);
|
||
parse(spirv.shader, spvParse, &spvx, _err);
|
||
|
||
for (SpvReflection::IdMap::const_iterator it = spvx.idMap.begin(), itEnd = spvx.idMap.end(); it != itEnd; ++it)
|
||
{
|
||
const SpvReflection::Id& id = it->second;
|
||
uint32_t num = uint32_t(id.members.size() );
|
||
if (0 < num
|
||
&& 0 != bx::strCmp(id.var.name.c_str(), "gl_PerVertex") )
|
||
{
|
||
DBG("%3d: %s %d %s\n"
|
||
, it->first
|
||
, id.var.name.c_str()
|
||
, id.var.location
|
||
, getName(id.var.storageClass)
|
||
);
|
||
DBG("{\n");
|
||
for (uint32_t ii = 0; ii < num; ++ii)
|
||
{
|
||
const SpvReflection::Id::Variable& var = id.members[ii];
|
||
DBG("\t\t%s %s %d %s\n"
|
||
, spvx.getTypeName(var.type).c_str()
|
||
, var.name.c_str()
|
||
, var.offset
|
||
, getName(var.storageClass)
|
||
);
|
||
BX_UNUSED(var);
|
||
}
|
||
DBG("}\n");
|
||
}
|
||
}
|
||
|
||
}
|
||
}
|
||
|
||
static EShLanguage getLang(char _p)
|
||
{
|
||
switch (_p)
|
||
{
|
||
case 'c': return EShLangCompute;
|
||
case 'f': return EShLangFragment;
|
||
case 'v': return EShLangVertex;
|
||
default: return EShLangCount;
|
||
}
|
||
}
|
||
|
||
static const char* s_attribName[] =
|
||
{
|
||
"a_position",
|
||
"a_normal",
|
||
"a_tangent",
|
||
"a_bitangent",
|
||
"a_color0",
|
||
"a_color1",
|
||
"a_color2",
|
||
"a_color3",
|
||
"a_indices",
|
||
"a_weight",
|
||
"a_texcoord0",
|
||
"a_texcoord1",
|
||
"a_texcoord2",
|
||
"a_texcoord3",
|
||
"a_texcoord4",
|
||
"a_texcoord5",
|
||
"a_texcoord6",
|
||
"a_texcoord7",
|
||
};
|
||
BX_STATIC_ASSERT(bgfx::Attrib::Count == BX_COUNTOF(s_attribName) );
|
||
|
||
bgfx::Attrib::Enum toAttribEnum(const bx::StringView& _name)
|
||
{
|
||
for (uint8_t ii = 0; ii < Attrib::Count; ++ii)
|
||
{
|
||
if (0 == bx::strCmp(s_attribName[ii], _name) )
|
||
{
|
||
return bgfx::Attrib::Enum(ii);
|
||
}
|
||
}
|
||
|
||
return bgfx::Attrib::Count;
|
||
}
|
||
|
||
static const char* s_samplerTypes[] =
|
||
{
|
||
"BgfxSampler2D",
|
||
"BgfxISampler2D",
|
||
"BgfxUSampler2D",
|
||
"BgfxSampler2DArray",
|
||
"BgfxSampler2DShadow",
|
||
"BgfxSampler2DArrayShadow",
|
||
"BgfxSampler3D",
|
||
"BgfxISampler3D",
|
||
"BgfxUSampler3D",
|
||
"BgfxSamplerCube",
|
||
"BgfxSamplerCubeShadow",
|
||
"BgfxSampler2DMS",
|
||
};
|
||
|
||
static uint16_t writeUniformArray(bx::WriterI* _writer, const UniformArray& uniforms, bool isFragmentShader)
|
||
{
|
||
uint16_t size = 0;
|
||
|
||
uint16_t count = static_cast<uint16_t>(uniforms.size() );
|
||
bx::write(_writer, count);
|
||
|
||
uint32_t fragmentBit = isFragmentShader ? kUniformFragmentBit : 0;
|
||
|
||
for (uint16_t ii = 0; ii < count; ++ii)
|
||
{
|
||
const Uniform& un = uniforms[ii];
|
||
|
||
if ( (un.type & ~kUniformMask) > UniformType::End)
|
||
{
|
||
size = bx::max(size, (uint16_t)(un.regIndex + un.regCount*16) );
|
||
}
|
||
|
||
uint8_t nameSize = (uint8_t)un.name.size();
|
||
bx::write(_writer, nameSize);
|
||
bx::write(_writer, un.name.c_str(), nameSize);
|
||
bx::write(_writer, uint8_t(un.type | fragmentBit) );
|
||
bx::write(_writer, un.num);
|
||
bx::write(_writer, un.regIndex);
|
||
bx::write(_writer, un.regCount);
|
||
bx::write(_writer, un.texComponent);
|
||
bx::write(_writer, un.texDimension);
|
||
bx::write(_writer, un.texFormat);
|
||
|
||
BX_TRACE("%s, %s, %d, %d, %d"
|
||
, un.name.c_str()
|
||
, getUniformTypeName(un.type)
|
||
, un.num
|
||
, un.regIndex
|
||
, un.regCount
|
||
);
|
||
}
|
||
return size;
|
||
}
|
||
|
||
static spv_target_env getSpirvTargetVersion(uint32_t version)
|
||
{
|
||
switch (version)
|
||
{
|
||
case 1010:
|
||
return SPV_ENV_VULKAN_1_0;
|
||
case 1311:
|
||
return SPV_ENV_VULKAN_1_1;
|
||
case 1411:
|
||
return SPV_ENV_VULKAN_1_1_SPIRV_1_4;
|
||
case 1512:
|
||
return SPV_ENV_VULKAN_1_2;
|
||
default:
|
||
BX_ASSERT(0, "Unknown SPIR-V version requested. Returning SPV_ENV_VULKAN_1_0 as default.");
|
||
return SPV_ENV_VULKAN_1_0;
|
||
}
|
||
}
|
||
|
||
static glslang::EShTargetClientVersion getGlslangTargetVulkanVersion(uint32_t version)
|
||
{
|
||
switch (version)
|
||
{
|
||
case 1010:
|
||
return glslang::EShTargetVulkan_1_0;
|
||
case 1311:
|
||
case 1411:
|
||
return glslang::EShTargetVulkan_1_1;
|
||
case 1512:
|
||
return glslang::EShTargetVulkan_1_2;
|
||
default:
|
||
BX_ASSERT(0, "Unknown SPIR-V version requested. Returning EShTargetVulkan_1_0 as default.");
|
||
return glslang::EShTargetVulkan_1_0;
|
||
}
|
||
}
|
||
|
||
static glslang::EShTargetLanguageVersion getGlslangTargetSpirvVersion(uint32_t version)
|
||
{
|
||
switch (version)
|
||
{
|
||
case 1010:
|
||
return glslang::EShTargetSpv_1_0;
|
||
case 1311:
|
||
return glslang::EShTargetSpv_1_3;
|
||
case 1411:
|
||
return glslang::EShTargetSpv_1_4;
|
||
case 1512:
|
||
return glslang::EShTargetSpv_1_5;
|
||
default:
|
||
BX_ASSERT(0, "Unknown SPIR-V version requested. Returning EShTargetSpv_1_0 as default.");
|
||
return glslang::EShTargetSpv_1_0;
|
||
}
|
||
}
|
||
|
||
/// This is the value used to fill out GLSLANG's SpvVersion object.
|
||
/// The required value is that which is defined by GL_KHR_vulkan_glsl, which is defined here:
|
||
/// https://github.com/KhronosGroup/GLSL/blob/master/extensions/khr/GL_KHR_vulkan_glsl.txt
|
||
/// The value is 100.
|
||
constexpr int s_GLSL_VULKAN_CLIENT_VERSION = 100;
|
||
|
||
static bool compile(const Options& _options, uint32_t _version, const std::string& _code, bx::WriterI* _writer, bool _firstPass)
|
||
{
|
||
BX_UNUSED(_version);
|
||
|
||
glslang::InitializeProcess();
|
||
|
||
EShLanguage stage = getLang(_options.shaderType);
|
||
if (EShLangCount == stage)
|
||
{
|
||
bx::printf("Error: Unknown shader type '%c'.\n", _options.shaderType);
|
||
return false;
|
||
}
|
||
|
||
glslang::TProgram* program = new glslang::TProgram;
|
||
glslang::TShader* shader = new glslang::TShader(stage);
|
||
|
||
EShMessages messages = EShMessages(0
|
||
| EShMsgDefault
|
||
| EShMsgReadHlsl
|
||
| EShMsgVulkanRules
|
||
| EShMsgSpvRules
|
||
);
|
||
|
||
shader->setEntryPoint("main");
|
||
shader->setAutoMapBindings(true);
|
||
shader->setEnvInput(glslang::EShSourceHlsl, stage, glslang::EShClientVulkan, s_GLSL_VULKAN_CLIENT_VERSION);
|
||
shader->setEnvClient(glslang::EShClientVulkan, getGlslangTargetVulkanVersion(_version));
|
||
shader->setEnvTarget(glslang::EShTargetSpv, getGlslangTargetSpirvVersion(_version));
|
||
uint32_t bindingOffset = (stage == EShLanguage::EShLangFragment ? 48 : 0);
|
||
shader->setShiftBinding(glslang::EResUbo, bindingOffset);
|
||
shader->setShiftBinding(glslang::EResTexture, bindingOffset + 16);
|
||
shader->setShiftBinding(glslang::EResSampler, bindingOffset + 32);
|
||
shader->setShiftBinding(glslang::EResSsbo, bindingOffset + 16);
|
||
shader->setShiftBinding(glslang::EResImage, bindingOffset + 32);
|
||
|
||
const char* shaderStrings[] = { _code.c_str() };
|
||
shader->setStrings(
|
||
shaderStrings
|
||
, BX_COUNTOF(shaderStrings)
|
||
);
|
||
bool compiled = shader->parse(&resourceLimits
|
||
, 110
|
||
, false
|
||
, messages
|
||
);
|
||
bool linked = false;
|
||
bool validated = true;
|
||
|
||
if (!compiled)
|
||
{
|
||
const char* log = shader->getInfoLog();
|
||
if (NULL != log)
|
||
{
|
||
int32_t source = 0;
|
||
int32_t line = 0;
|
||
int32_t column = 0;
|
||
int32_t start = 0;
|
||
int32_t end = INT32_MAX;
|
||
|
||
bx::StringView err = bx::strFind(log, "ERROR:");
|
||
|
||
bool found = false;
|
||
|
||
if (!err.isEmpty() )
|
||
{
|
||
found = 2 == sscanf(err.getPtr(), "ERROR: %u:%u: '", &source, &line);
|
||
if (found)
|
||
{
|
||
++line;
|
||
}
|
||
}
|
||
|
||
if (found)
|
||
{
|
||
start = bx::uint32_imax(1, line-10);
|
||
end = start + 20;
|
||
}
|
||
|
||
printCode(_code.c_str(), line, start, end, column);
|
||
|
||
bx::printf("%s\n", log);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
program->addShader(shader);
|
||
linked = true
|
||
&& program->link(messages)
|
||
&& program->mapIO()
|
||
;
|
||
|
||
if (!linked)
|
||
{
|
||
const char* log = program->getInfoLog();
|
||
if (NULL != log)
|
||
{
|
||
bx::printf("%s\n", log);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
program->buildReflection();
|
||
|
||
if (_firstPass)
|
||
{
|
||
// first time through, we just find unused uniforms and get rid of them
|
||
std::string output;
|
||
|
||
struct Uniform
|
||
{
|
||
std::string name;
|
||
std::string decl;
|
||
};
|
||
std::vector<Uniform> uniforms;
|
||
|
||
bx::LineReader reader(_code.c_str() );
|
||
while (!reader.isDone() )
|
||
{
|
||
bx::StringView strLine = reader.next();
|
||
|
||
bool moved = false;
|
||
|
||
bx::StringView str = strFind(strLine, "uniform ");
|
||
if (!str.isEmpty() )
|
||
{
|
||
bool found = false;
|
||
bool sampler = false;
|
||
std::string name = "";
|
||
|
||
// add to samplers
|
||
|
||
for (uint32_t ii = 0; ii < BX_COUNTOF(s_samplerTypes); ++ii)
|
||
{
|
||
if (!bx::findIdentifierMatch(strLine, s_samplerTypes[ii]).isEmpty() )
|
||
{
|
||
found = true;
|
||
sampler = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (!found)
|
||
{
|
||
for (int32_t ii = 0, num = program->getNumLiveUniformVariables(); ii < num; ++ii)
|
||
{
|
||
// matching lines like: uniform u_name;
|
||
// we want to replace "uniform" with "static" so that it's no longer
|
||
// included in the uniform blob that the application must upload
|
||
// we can't just remove them, because unused functions might still reference
|
||
// them and cause a compile error when they're gone
|
||
if (!bx::findIdentifierMatch(strLine, program->getUniformName(ii) ).isEmpty() )
|
||
{
|
||
found = true;
|
||
name = program->getUniformName(ii);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!found)
|
||
{
|
||
output.append(strLine.getPtr(), str.getPtr() );
|
||
output += "static ";
|
||
output.append(str.getTerm(), strLine.getTerm() );
|
||
output += "\n";
|
||
moved = true;
|
||
}
|
||
else if (!sampler)
|
||
{
|
||
Uniform uniform;
|
||
uniform.name = name;
|
||
uniform.decl = std::string(strLine.getPtr(), strLine.getTerm() );
|
||
uniforms.push_back(uniform);
|
||
moved = true;
|
||
}
|
||
}
|
||
|
||
if (!moved)
|
||
{
|
||
output.append(strLine.getPtr(), strLine.getTerm() );
|
||
output += "\n";
|
||
}
|
||
}
|
||
|
||
std::string uniformBlock;
|
||
uniformBlock += "cbuffer UniformBlock\n";
|
||
uniformBlock += "{\n";
|
||
|
||
for (const Uniform& uniform : uniforms)
|
||
{
|
||
uniformBlock += uniform.decl.substr(7 /* uniform */);
|
||
uniformBlock += "\n";
|
||
}
|
||
|
||
uniformBlock += "};\n";
|
||
|
||
output = uniformBlock + output;
|
||
|
||
// recompile with the unused uniforms converted to statics
|
||
delete program;
|
||
delete shader;
|
||
return compile(_options, _version, output.c_str(), _writer, false);
|
||
}
|
||
|
||
UniformArray uniforms;
|
||
|
||
{
|
||
uint16_t count = (uint16_t)program->getNumLiveUniformVariables();
|
||
|
||
for (uint16_t ii = 0; ii < count; ++ii)
|
||
{
|
||
Uniform un;
|
||
un.name = program->getUniformName(ii);
|
||
|
||
un.num = 0;
|
||
const uint32_t offset = program->getUniformBufferOffset(ii);
|
||
un.regIndex = uint16_t(offset);
|
||
un.regCount = uint16_t(program->getUniformArraySize(ii));
|
||
|
||
switch (program->getUniformType(ii) )
|
||
{
|
||
case 0x1404: // GL_INT:
|
||
un.type = UniformType::Sampler;
|
||
break;
|
||
|
||
case 0x8B52: // GL_FLOAT_VEC4:
|
||
un.type = UniformType::Vec4;
|
||
break;
|
||
|
||
case 0x8B5B: // GL_FLOAT_MAT3:
|
||
un.type = UniformType::Mat3;
|
||
un.regCount *= 3;
|
||
break;
|
||
|
||
case 0x8B5C: // GL_FLOAT_MAT4:
|
||
un.type = UniformType::Mat4;
|
||
un.regCount *= 4;
|
||
break;
|
||
|
||
default:
|
||
continue;
|
||
}
|
||
|
||
uniforms.push_back(un);
|
||
}
|
||
}
|
||
|
||
if (g_verbose)
|
||
{
|
||
program->dumpReflection();
|
||
}
|
||
|
||
BX_UNUSED(spv::MemorySemanticsAllMemory);
|
||
|
||
glslang::TIntermediate* intermediate = program->getIntermediate(stage);
|
||
std::vector<uint32_t> spirv;
|
||
|
||
glslang::SpvOptions options;
|
||
options.disableOptimizer = false;
|
||
|
||
glslang::GlslangToSpv(*intermediate, spirv, &options);
|
||
|
||
spvtools::Optimizer opt(getSpirvTargetVersion(_version));
|
||
|
||
auto print_msg_to_stderr = [](
|
||
spv_message_level_t
|
||
, const char*
|
||
, const spv_position_t&
|
||
, const char* m
|
||
)
|
||
{
|
||
bx::printf("Error: %s\n", m);
|
||
};
|
||
|
||
opt.SetMessageConsumer(print_msg_to_stderr);
|
||
|
||
opt.RegisterLegalizationPasses();
|
||
|
||
spvtools::ValidatorOptions validatorOptions;
|
||
validatorOptions.SetBeforeHlslLegalization(true);
|
||
|
||
if (!opt.Run(
|
||
spirv.data()
|
||
, spirv.size()
|
||
, &spirv
|
||
, validatorOptions
|
||
, false
|
||
) )
|
||
{
|
||
compiled = false;
|
||
}
|
||
else
|
||
{
|
||
bx::Error err;
|
||
bx::WriterI* writer = bx::getDebugOut();
|
||
bx::MemoryReader reader(spirv.data(), uint32_t(spirv.size()*4) );
|
||
disassemble(writer, &reader, &err);
|
||
|
||
spirv_cross::CompilerReflection refl(spirv);
|
||
spirv_cross::ShaderResources resourcesrefl = refl.get_shader_resources();
|
||
|
||
if (g_verbose)
|
||
{
|
||
glslang::SpirvToolsDisassemble(std::cout, spirv, getSpirvTargetVersion(_version) );
|
||
}
|
||
|
||
// Loop through the separate_images, and extract the uniform names:
|
||
for (auto &resource : resourcesrefl.separate_images)
|
||
{
|
||
std::string name = refl.get_name(resource.id);
|
||
|
||
if (name.size() > 7
|
||
&& 0 == bx::strCmp(name.c_str() + name.length() - 7, "Texture") )
|
||
{
|
||
name = name.substr(0, name.length() - 7);
|
||
}
|
||
|
||
uint32_t binding_index = refl.get_decoration(resource.id, spv::Decoration::DecorationBinding);
|
||
|
||
auto imageType = refl.get_type(resource.base_type_id).image;
|
||
auto componentType = refl.get_type(imageType.type).basetype;
|
||
|
||
bool isCompareSampler = false;
|
||
for (auto& sampler : resourcesrefl.separate_samplers)
|
||
{
|
||
if (binding_index + 16 == refl.get_decoration(sampler.id, spv::Decoration::DecorationBinding) )
|
||
{
|
||
std::string samplerName = refl.get_name(sampler.id);
|
||
isCompareSampler = refl.variable_is_depth_or_compare(sampler.id) || samplerName.find("Comparison") != std::string::npos;
|
||
break;
|
||
}
|
||
}
|
||
|
||
Uniform un;
|
||
un.name = name;
|
||
un.type = UniformType::Enum(UniformType::Sampler
|
||
| kUniformSamplerBit
|
||
| (isCompareSampler ? kUniformCompareBit : 0)
|
||
);
|
||
|
||
un.texComponent = textureComponentTypeToId(SpirvCrossBaseTypeToFormatType(componentType, imageType.depth) );
|
||
un.texDimension = textureDimensionToId(SpirvDimToTextureViewDimension(imageType.dim, imageType.arrayed) );
|
||
un.texFormat = uint16_t(s_textureFormats[imageType.format]);
|
||
|
||
un.regIndex = binding_index;
|
||
un.regCount = 0; // unused
|
||
|
||
uniforms.push_back(un);
|
||
}
|
||
|
||
// Loop through the storage_images, and extract the uniform names:
|
||
for (auto &resource : resourcesrefl.storage_images)
|
||
{
|
||
std::string name = refl.get_name(resource.id);
|
||
|
||
uint32_t binding_index = refl.get_decoration(resource.id, spv::Decoration::DecorationBinding);
|
||
|
||
auto imageType = refl.get_type(resource.base_type_id).image;
|
||
auto componentType = refl.get_type(imageType.type).basetype;
|
||
|
||
spirv_cross::Bitset flags = refl.get_decoration_bitset(resource.id);
|
||
UniformType::Enum type = flags.get(spv::DecorationNonWritable)
|
||
? UniformType::Enum(kUniformReadOnlyBit | UniformType::End)
|
||
: UniformType::End;
|
||
|
||
Uniform un;
|
||
un.name = name;
|
||
un.type = type;
|
||
|
||
un.texComponent = textureComponentTypeToId(SpirvCrossBaseTypeToFormatType(componentType, imageType.depth) );
|
||
un.texDimension = textureDimensionToId(SpirvDimToTextureViewDimension(imageType.dim, imageType.arrayed) );
|
||
un.texFormat = uint16_t(s_textureFormats[imageType.format]);
|
||
|
||
un.regIndex = binding_index;
|
||
un.regCount = descriptorTypeToId(DescriptorType::StorageImage);
|
||
|
||
uniforms.push_back(un);
|
||
}
|
||
|
||
// Loop through the storage buffer, and extract the uniform names:
|
||
for (auto& resource : resourcesrefl.storage_buffers)
|
||
{
|
||
std::string name = refl.get_name(resource.id);
|
||
uint32_t binding_index = refl.get_decoration(resource.id, spv::Decoration::DecorationBinding);
|
||
|
||
spirv_cross::Bitset flags = refl.get_buffer_block_flags(resource.id);
|
||
UniformType::Enum type = flags.get(spv::DecorationNonWritable)
|
||
? UniformType::Enum(kUniformReadOnlyBit | UniformType::End)
|
||
: UniformType::End;
|
||
|
||
Uniform un;
|
||
un.name = name;
|
||
un.type = type;
|
||
un.num = 0;
|
||
un.regIndex = binding_index;
|
||
un.regCount = descriptorTypeToId(DescriptorType::StorageBuffer);
|
||
|
||
uniforms.push_back(un);
|
||
}
|
||
|
||
uint16_t size = writeUniformArray( _writer, uniforms, _options.shaderType == 'f');
|
||
|
||
if (_version == BX_MAKEFOURCC('M', 'T', 'L', 0) )
|
||
{
|
||
spirv_cross::CompilerMSL msl(std::move(spirv) );
|
||
|
||
spirv_cross::ShaderResources resources = msl.get_shader_resources();
|
||
|
||
spirv_cross::SmallVector<spirv_cross::EntryPoint> entryPoints = msl.get_entry_points_and_stages();
|
||
if (!entryPoints.empty() )
|
||
{
|
||
msl.rename_entry_point(
|
||
entryPoints[0].name
|
||
, "xlatMtlMain"
|
||
, entryPoints[0].execution_model
|
||
);
|
||
}
|
||
|
||
for (auto &resource : resources.uniform_buffers)
|
||
{
|
||
msl.set_name(resource.id, "_mtl_u");
|
||
}
|
||
|
||
for (auto &resource : resources.storage_buffers)
|
||
{
|
||
unsigned binding = msl.get_decoration(resource.id, spv::DecorationBinding);
|
||
msl.set_decoration(resource.id, spv::DecorationBinding, binding + 1);
|
||
}
|
||
|
||
for (auto &resource : resources.separate_images)
|
||
{
|
||
std::string name = msl.get_name(resource.id);
|
||
if (name.size() > 7
|
||
&& 0 == bx::strCmp(name.c_str() + name.length() - 7, "Texture") )
|
||
{
|
||
msl.set_name(resource.id, name.substr(0, name.length() - 7) );
|
||
}
|
||
}
|
||
|
||
std::string source = msl.compile();
|
||
|
||
if ('c' == _options.shaderType)
|
||
{
|
||
for (int i = 0; i < 3; ++i)
|
||
{
|
||
uint16_t dim = (uint16_t)msl.get_execution_mode_argument(spv::ExecutionMode::ExecutionModeLocalSize, i);
|
||
bx::write(_writer, dim);
|
||
}
|
||
}
|
||
|
||
uint32_t shaderSize = (uint32_t)source.size();
|
||
bx::write(_writer, shaderSize);
|
||
bx::write(_writer, source.c_str(), shaderSize);
|
||
uint8_t nul = 0;
|
||
bx::write(_writer, nul);
|
||
}
|
||
else
|
||
{
|
||
uint32_t shaderSize = (uint32_t)spirv.size() * sizeof(uint32_t);
|
||
bx::write(_writer, shaderSize);
|
||
bx::write(_writer, spirv.data(), shaderSize);
|
||
uint8_t nul = 0;
|
||
bx::write(_writer, nul);
|
||
}
|
||
|
||
const uint8_t numAttr = (uint8_t)program->getNumLiveAttributes();
|
||
bx::write(_writer, numAttr);
|
||
|
||
for (uint8_t ii = 0; ii < numAttr; ++ii)
|
||
{
|
||
bgfx::Attrib::Enum attr = toAttribEnum(program->getAttributeName(ii) );
|
||
if (bgfx::Attrib::Count != attr)
|
||
{
|
||
bx::write(_writer, bgfx::attribToId(attr) );
|
||
}
|
||
else
|
||
{
|
||
bx::write(_writer, uint16_t(UINT16_MAX) );
|
||
}
|
||
}
|
||
|
||
bx::write(_writer, size);
|
||
}
|
||
}
|
||
}
|
||
|
||
delete program;
|
||
delete shader;
|
||
|
||
glslang::FinalizeProcess();
|
||
|
||
return compiled && linked && validated;
|
||
}
|
||
|
||
} // namespace spirv
|
||
|
||
bool compileSPIRVShader(const Options& _options, uint32_t _version, const std::string& _code, bx::WriterI* _writer)
|
||
{
|
||
return spirv::compile(_options, _version, _code, _writer, true);
|
||
}
|
||
|
||
} // namespace bgfx
|